Pressing apparatus.



J. J. BERRIGAN.-

PRBSSING APPARATUS.

APPLICATION FILED .TUNE 16, 1914. A

Patented Mar. 9, 1915.

N s'iA'i-Es PATENT oFF-ien.

conr'ona'riou or NEW JERSEY.

Be it known that I, JOHN J Bankieren, a citizen, of the United States, .residing at Orange, county, of Essex, and State of New Jersey, have invented certain -new vand useful Improvementsdn lowing specification` and the accompanying i c drawing, forming a part of Ithe same- .My invention relates to an imprbvement in pressing apparatus, ,and particularly to an improvement ina `filterzprcSS of the-WPG i shown and described in my application, Se- Yriallluniber 776,567, filed J une 30, 1913.

.The object ofthe invention is to provide convenient means whereby the, filtering surface of the lpress `may be materially in-y creased, while at the same time allowing a free escape of the liquid fromthe press.

In my application above referred to, a press is shown comprising two, platens, angularly movable about a pivotal point in the vicinity of'the upper edge of the platen,

said platens being so mounted that they will have an`r angular movement towardA each other, whereby the material being pressed is subjected to a pressure gradually increased from above, downward. In a press of this c kind, a bag containing the material ,to be pressed may be placed between the platens and subjected, to the. pressure due t0.. vthe downward weight of the pressing mechanism. In such a case, where one bag is, be-

ing pressed, the filtering surface is the exam enabled employ two or more bags for containing they terior surface of the bag.,

By the present invention,

material, while at the same., time providing a.

free escape forthe liquid onl the contiguous te devices;

sides of, adjacent bags,` and avoiding comf plications which might lead to an inconvenientor uneconoinical eration.:

v With these obyects in' iview, ,myginvention consists in-the features,details ofgconstrucf4 tion and combinaticnstwhich 1 will 1 .Iirst be described in connection withthe accompanyi'ngfdrawingsv and-then more particu arly pointed 0i1t.,. f. me 1 4r f InI the '-drawings;-,--L-Figureg1 iS. an end view of aispeeic form of filter press pro,- vided withqmy inveinaion;A Eig. 2 a face view ofione pf `the platens, with a part brokenfaway tcsh-minne 0f the partities.

section, of the same; Fig. a detail cross y peciilcatioii of Letiterii Patei'iit'. i Ziiiipiiaatmn nieu :une is, 1914. semi No. 945,364.

Pressing Apparatus,` fully` described and represented in the, folrriloi'ernenhis0. as to detailv patented digit.

Sata, fait 0i a@ attraente;

Eig.,5 a similar viewillustratix'ga modi- '.isi ci...

cationpt theinvention. .if i'.

Referringto the drawings, 1,11*, indicate the. two platensotthe press, such asis, illustrated in m application hereinbefore :resv ferredtd hese platensare trun'nioed as indeatedat l1 on arms l2 fulcrinnedai. suitable fulcruin devices 13... The :platps are. pivotally connected. near their.. upper edges ink any suitable. way, as, .forexamp1e,

bymeans of thecnnecting devices'Z, 8e4,

`described in ni. above-inentioned .applicate t0n,. whereby Yt 'e downward.,:movement.ofthey platens andtheir attached parte, .under the action of gravity, will .balise thegpres'sf' ing facesof said platens. tamoretoward each. other, with .an 'apgular .:moveinent about .an imaginary centeror. axis located near the uppenendsthe praterie...I Iirfa press ofthisgeneral type, the .liqiiitaut'l pressed from. the material jhas a; free,y flew downward .unjder the action 0f gravity ad the greater Vpressure abore i-\t.1- ,If,-now, a plurality of bags containiqgmaterial be pressed be insertedjside-,by IsideeiJ Suche press, it is obvious thatthenontiguqus surfaces of adjacent bags will bearagainsteiwh other and that,.thei`efnte,-Qwing.t0 tliexiz. bility of the bags, these contiguous lsuiaces' will fit tightlyagainst each-oth i'. 'As-arevis increase in directyprmiortion the number.A

ofseparatebags-inserted .atene ,time in th press.. `Bymy presentv inventinne lI separete the bagsbyu fprttomdeyice tween the .'cont1guous .surfacesfc adjacent bags, the partitionY devise 0r devices being mounted in suchia wa-ythat thebagsinayfb readily inserted v between 1 the* rspfetre y ip thqmpst satisfactery manneneachrartf tlondevice comprises apluralityeoi nlate namely, a central partition plate errang cated at a, Figs. 2 and 4, these grooves extending tothe bottom of the plate A, so that the li uid may flow freely from the channelsl n each side'of`the central par- -titionv plate is-'placed a foraminated plate,

c each of which, in the present 8Xamplecon sistsfof a sheet or plate of wire gauze, as ini dicated at A,'these gauze'sheets or plates'` being .secured to thecentral partition plate j in any suitable manner, as, for example, by screws a .passing through suitableclampin strips A2, which bear against the upper en sheetsY `or plates A' and clamp the same i: firmly .against the corresponding central parv tition plate A. In pressing some materials, each` partition device may' consist merely of a central partitionfplate having channels or grooves, the two facing-sheets of 'wire gauze being omitted'.-A In `using. 'a'partition device of'this `ki1id,'th"e.channels or grooves should have such a: small width' thatdthe ba material will span the. groove .without urst- 35.

the `bottom of the groove,- but vwillhave a portion of the channel' unobst1`*l1cted,` so that the'liquid may'owreely-inadownward Ydirection I instead of nialsngiieeimipeintres .plate solid Awithffgroovertfaces as hereinefore described, it/may be made of-heavy wire cloth or gratingmaterialf'as indicated at A, Fig. 5, and to this:amy-tbe suitably secured 'facing sheets of gauze, 'as 1ndi' cate'dl'at'A, Fig. -5. Inl-this construction,

the gauze sheets may betiedto the central 'artition plate by Wires, as indicated at a4. .1 ith 'a partition device thus constructed, the f liquid is pressed through the foraminations inthe gauze into the spaces in the heavy wire cloth or grating, and, owing to the fact that these spaces communicate with.' each other, the liquid is free to iiow downward to the bottom of the thence discharge.

Each partition device is supported at its partition device and lvice B, in this case mounted loosely in the respective platens near the upper ends thereo. As shown, each supporting device comprises a bolt whose ends extend loosely e5 through holes in the platens, these bolts lowerl margins of the corresponding gauze ingunderv thexpreslsure to lwhichjit is-v'sub- "'ected, andthe depth'p'f each'fgroove should f e such that the bag w'll'notbei pressedto" upper corners by a suitable supporting de-t .to hang down vertically from the supporting means. While I have shown two such partition devices, it is obvious that more might bensed. j

In order to make it convenient to insert the bags vbetween the respective partition devices and platens, it is-important that the partition devices shall not be permitted to slide over into close contact with the platens. For the purpose of preventing such contact, suitable means is provided for restricting g5 the movement of the partition devices on the supporting means. In the present embodiment of the invention; this restriction of themovement of the partition devices is readily accomplished by providing distance 9o bolts C engaging the respective partition devices near their upper corners, these bolts being loosely connected to corresponding platens. In the present example, each distance bolt passes loosely through a hole/in one platen land is provided with a nut beyond thai-inner face of said platen. Also,-

it passes loosely through holes in the partition devices and is provided with asuitable restricting device, such, for' example, as a 100 head at its free end. This head serves to restrict the movement of the partition :devices arthest from the platen to which said distance bolt is connected,so that said partition devices cannot move over in contact with the platen nearest to it. B this method of mounting, the partition evices have the requisite yfreedom of movement, so that as the pressing operation proceeds andf vthe material is compacted, the partition de- 11o vices will be 'free to move asrequired.- At A the same time, when the material is removed from between the partition devices and plat- Y ens, there is no possibility of inconvenlence resulting from the slipping of partition devices in close contact `with their adjacent platens. y

It will be seen that where the bags are separated by partition devices, suspended loosely in the manner herein before pointed out, the bags are prevented from coming in Contact with each other and fhence the liquid expressed from the inner sides 'of the bags ad]acent to each other may flow freely downward in the liquid channels of the cencentral partition plates, By this 1% means, an increased filtration surface may be obtained, without a material increase in the cost of construction or inconvenience in operation, as the bags may readily be ins'erte and removed from the press.

What is claimed `is:-

1. In a filter press, the combination, with a pair of platens having their pressing faces extending in a eneral upward direction, and means where y a relative movement of said platens toward and from each other is produced, of a partition device intermediate said platens, and means carried by the platens for supporting said partition device.

2. In a filter press, the combination, with a pair of platens having their pressing faces extending in a general upward direction, and means for producing an angular movement of the platens toward and from each other, of al supporting means carried by both platens, a partition device supported by said supporting means and capable of movement with relation thereto, and means for rest ricting the movement of the partition device.

3. In a filter press, the combination, with a pair of platens having their pressing faces extending in a general upward direction, means for connecting said platens for lpivotal movement near their upper sides, and means for producing an angular movement of the platens about said pivotal connection, of supporting means extending through and loosely mounted in each platen near its upper edge, partition devices carried by said supporting means, and means carried by each platen for limiting the movement of the partition device farthest from it.

4. In a filter press, the combination, with a pair of platens having their pressing faces extending in a general upward direction, means for connecting said platens for pivotal movement near their upper sides, and means for producing an angular movement of the platens about said pivotal connection, of supporting bolts extending through and loosely mounted in each platen near its upper edge, partition devices carried by said supporting bolts, each partition device having downward discharging liquid channels, and distance bolts carried b each platen for limiting the movement o the partition device farthest from it.

5. In a pressing apparatus, the combination, with coperatin members mounted for gravital movement ownward and having pressing faces extending in a general upward "direction, of means for causing the downward movement of said members to produce an increasing pressure on said members to move them toward each other, supporting means carried by the platens near their upper sides, and partition devices loosely hung on said supporting means.

6. n a pressing apparatus, the combination, with coperating members mounted for gravital movement downward and having pressing faces extending in a general upward direction, of means for causing the downward movement of said members to produce an increasing pressure on said members-to move them toward eachother, supporting means carried by the platens near their upper sides, partition devices loosely hung on said supporting means, and means carried by each platen for limiting the movement of the partition device farthest from it.

7 In a filter press, the combination, with a pair of platens having their pressing faces extending in a general upward direction, and means whereby a relative movement of said platens toward and from each other is produced, of a partition device intermediate said platens, said partition device comprising a central partition plate provided with downward discharging liquid channels and foraminated plates at each side thereof, and means for supporting said partition device loosely.

8. In a filter press, the combination, with a pair of platens having their pressing faces extending in a general upward direction, and means whereby a relative movement of said platens toward and from each other is produced, of a partition device intermediate said platens, said partition device comprising a central partition plate having a plurality of narrow downward extending grooves through which liquid may discharge from the plate.

In testimony whereof, I have hereunto set my hand, in the presence of two subscribing witnesses.

JOHN J. BERRIGAN.

Witnesses: AUGUSTA WHITE,

C. J. SAWYER. 

